[Gphoto-user] gphoto2 error during capture

[SCOTT B. <bro...@gm...>]

Hi,

I have a Canon PowerShot A640 and I have found an error while capturing
images with gphoto.  If I put gphoto into a loop taking only 2 pictures and
I check what files are listed using the gphoto --list-files command there
always ends up being 3 pictures taken instead of two.  For some reason an
error appears during the second shot.  It doesn't matter if you take 50
pictures in a loop or 2, there always is one extra picture.  Here is a mock
script file;

---------------------------------------------------------------------------------------------------------------------------------------
#myscript.txt

#!/bin/sh

i=0

while [ $i -lt 2 ]
do
        gphoto2 --capture-image
        if [ "$?" -ne "1" ]; then
                echo "Picture taken sucessfully"
                i=`expr $i + 1`
        else
                echo "Picture unsuccessfull"
        fi
done
--------------------------------------------------------------------------------------------------------------------------------------------------

Here is the displayed output when the program is ran:

root@gumstix-custom-verdex:~$
./test.txt
New file is in location /store_00010001/IMG_0001.JPG on the
camera
Picture taken
sucessfully
ERROR: Could not
capture.
*** Error (-10: 'Timeout reading from or writing to the port')
***


For debugging messages, please use the --debug
option.
Debugging messages may help finding a solution to your
problem.
If you intend to send any error or debug messages to the
gphoto
developer mailing list <gph...@li...>, please
run
gphoto2 as
follows:


    env LANG=C gphoto2 --debug --debug-logfile=my-logfile.txt
--capture-image


Please make sure there is sufficient quoting around the
arguments.


Picture
unsuccessfull
New file is in location /store_00010001/DCIM/100CANON/IMG_0002.JPG on the
camera
Picture taken
sucessfully
root@gumstix-custom-verdex:~$

-----------------------------------------------------------------------------------------------------------------------------------------------
here is the camera files listed:

root@gumstix-custom-verdex:~$ gphoto2
--list-files
There is no file in folder
'/'.
There is no file in folder
'/store_00010001'.
There is no file in folder
'/store_00010001/DCIM'.
There are 3 files in folder
'/store_00010001/DCIM/100CANON'.
#1     IMG_0001.JPG                 2177 KB 3648x2736
image/jpeg
#2     IMG_0002.JPG                 2165 KB 3648x2736
image/jpeg
#3     IMG_0003.JPG                 2200 KB 3648x2736
image/jpeg
There is no file in folder '/store_00010001/MISC'.
------------------------------------------------------------------------------------------------------------------------------------------------

Anyone have any ideas on how to fix the error occuring?  I am trying link
each picture with a program created text file and currently I am not able to
with the double picture being taken after the second picture.  I have tried
to slow down gphoto using sleep commands and there still always is an error
with the second picture being taken for some reason.

Thanks,

Scott Brown